CBSE Class 12 Physics Boards 2021 Sample Paper Solved

Read and download the CBSE Class 12 Physics Boards 2021 Sample Paper Solved, designed by expert teachers according to the latest 2025-26 curriculum and examination pattern issued by CBSE, NCERT, and KVS. These Class 12 Physics sample papers include detailed step-by-step solutions, helping students to practice and evaluate their performance against the most recent marking schemes.

Solved Sample Paper for Class 12 Physics PDF

Our Class 12 Physics model papers are important for understanding the weightage of different chapters and the difficulty level of expected questions. By solving these guess papers Class 12 students can identify weak areas and improve time management. We also suggest referring to our Class 12 Physics Question Papers of previous years to further strengthen your exam preparation.

Class 12 Physics Sample Paper with Solutions

Section – A
All questions are compulsory. In case of internal choices, attempt any one of them.
 
1 Name the physical quantity having unit J/T.
 
2 Mention one use of part of electromagnetic spectrum to which a wavelength of 21 cm (emitted by hydrogen in interstellar space) belongs.
OR
Give the ratio of velocity of the two light waves of wavelengths 4000Å and 8000Å travelling in vacuum.
 
3 An electron with charge -e and mass m travels at a speed v in a plane perpendicular to a magnetic field of magnitude B. The electron follows a circular path of radius R. In a time, t, the electron travels halfway around the circle. What is the amount of work done by the magnetic field?
4 A solenoid with N loops of wire tightly wrapped around an iron-core is carrying an electric current I. If the current through this solenoid is reduced to half, then what change would you expect in inductance L of the solenoid.
OR
An alternating current from a source is given by i=10sin314t. What is the effective value of current and frequency of source?
 
5 What is the value of angular momentum of electron in the second orbit of Bohr’s model of hydrogen atom?
 
6 In a photoelectric experiment, the potential required to stop the ejection of electrons from cathode is 4V. What is the value of maximum kinetic energy of emitted Photoelectrons?
 
7 In decay of free neutron, name the elementary particle emitted along with proton and electron in nuclear reaction.
OR
In the following nuclear reaction, Identify unknown labelled X.
 
8 How does the width of a depletion region of a pn junction vary if doping concentration is increased?
OR
In half wave rectification, what is the output frequency if input frequency is 25 Hz.
 
9 When a voltage drop across a pn junction diode is increased from 0.70 V to 0.71V, the change in the diode current is 10 mA .What is the dynamic resistance of diode?
 
10 Which specially fabricated pn junction diode is used for detecting light intensity?
 
For question numbers 11, 12, 13 and 14, two statements are given-one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below.
 
a) Both A and R are true and R is the correct explanation of A
 
b) Both A and R are true but R is NOT the correct explanation of A
 
c) A is true but R is false
 
d) A is false and R is also false
 
11 Assertion(A) :
In a nonuniform electric field, a dipole will have translatory as well as rotatory motion.
 
Reason(R):
In a nonuniform electric field, a dipole experiences a force as well as torque.
 
12 Assertion(A):
Electric field is always normal to equipotential surfaces and along the direction of decreasing order of potential
 
Reason(R):
Negative gradient of electric potential is electric field.
 
13 Assertion (A):
A convex mirror cannot form real images.
 
Reason (R):
Convex mirror converges the parallel rays that are incident on it.
 
Please click on below link to download CBSE Class 12 Physics Boards 2021 Sample Paper Solved.

How to download CBSE Class 12 Physics Boards 2021 Sample Paper Solved in PDF?

Students can easily download the CBSE Class 12 Physics Boards 2021 Sample Paper Solved from our website to prepare for their upcoming examinations. To score high marks, it is important for Class 12 students to understand the exaact pattern as per which teachers design the question papers. We strongly suggest that you practice these latest sample papers for Physics and solve different types of questions that are expected to come this year. You can downloadin PDF format so that you can practice offline. We also recommend that Class 12 students solve these papers actual exam conditions at home.

Why should you solve CBSE Class 12 Physics Boards 2021 Sample Paper Solved?

Practicing these model papers has several benefits for Class 12 students:

  • New Question Bank: This set has fresh questions for Physics which are different from previous years.
  • Exam Pattern Knowledge: Solving more sets will help you to understand the weightage of each chapter in Class 12 and also the type of questions asked.
  • Identify Weak Areas: Comparing your score in each set to find out topics in Class 12 Physics for which you need hard work.
  • Speed and Accuracy: Attempting MCQ questions and long-form problems for Class 12 Physics makes you faster and better and you will be able to finish your exam on time.

What should you do after solving CBSE Class 12 Physics Boards 2021 Sample Paper Solved?

  1. Check Your Work: Match your answers with the solutions given by our teachers in the Physics Sample Paper PDF.
  2. Learn from Mistakes: Class 12 students should focus on the questions which you solved incorrectly and understand the error.
  3. Revision: If you find a question difficult you shoul refer to NCERT book for Class 12 Physics to understand concepts and then try the question again.
  4. Continuous Practice: Solve multiple sets of Physics sample papers from studiestoday.com to build confidence before the CBSE exams.
Where can I download CBSE Class 12 Physics Boards 2021 Sample Paper Solved in Pdf

You can download CBSE Class 12 Physics Boards 2021 Sample Paper Solved from StudiesToday.com

How can I improve my scores by solving CBSE Class 12 Physics Boards 2021 Sample Paper Solved

Regular practice of sample question paper given on studiestoday for CBSE Class 12 Physics Boards 2021 Sample Paper Solved can help you to score better marks in exams

Are there any websites that offer free CBSE Class 12 Physics Boards 2021 Sample Paper Solved

Yes, studiestoday.com provides all latest CBSE Class 12 Physics Sample Papers with answers based on the latest format issued for current academic session

Are mock CBSE Class 12 Physics Boards 2021 Sample Paper Solved available in multiple languages

Yes, mock CBSE Class 12 Physics Boards 2021 Sample Paper Solved are available in multiple languages, including English, Hindi